With CONSULT-II

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition switch ON.
Select "DATA MONITOR" mode with CONSULT
Wait at least 5 seconds.
If DTC is detected, go to "DIAGNOSTIC PROCEDURE ".
If DTC is not detected, go to next step.
Start engine and wait at least 5 seconds.
If DTC is detected, go to "DIAGNOSTIC PROCEDURE ".

Fig 1: DTC Confirmation Procedure With CONSULT-II (P0103)
Courtesy of NISSAN MOTOR CO., U.S.A.